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【单选题】
用分配柱色谱法分离 A 、 B 和 C 三组分的混合样品,已知它们的分配系数 K A > K B > K C ,则其保留时间的大小顺序应为 ( )A.
B
B.
A>B>C
C.
A
D.
A
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A.
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B.
a round piece of beef
C.
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D.
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A.
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B.
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C.
hamburgers are made with ham
D.
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A.
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B.
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D.
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